“…Prior GMM-centric literature has established five basic justifications for adopting GMM estimator in the literature (Asongu, 2019;Asongu, Adegboye, & Nnanna, 2021;Asongu, Adegboye, Ejemeyovwi, et al, 2021). These factors are discussed with no priority: (i) The number of cross-sections (i.e., N) must exceed the number of corresponding periods.…”